blogBackend
Designing Resilient Spring Boot Services
A practical look at service boundaries, failure handling, validation, and the small decisions that make backend systems easier to operate.
Knowledge units
Blogs
Technical ideas, implementation notes, and the reasoning behind engineering decisions.
blogDatabase
MySQL Indexes: From a Slow Query to a Better B+ Tree
Tracing one slow query through execution plans, composite indexes, selectivity, and the tradeoffs behind faster reads.
blogDistributed Systems
Redis Caching Without Surprises
Notes on cache-aside, expiration, hot keys, invalidation, and choosing when a cache truly belongs in the architecture.
blogFull Stack
Shipping a Feature Across Next.js and Spring Boot
A practical walkthrough of carrying one feature from the interface to an API contract, persistence, and deployment.
blogDevOps
A Calm Docker Compose Setup for Local Development
Organizing application services, health checks, environment variables, and local dependencies without making development fragile.
blogBackend
API Contracts That Age Well
Notes on predictable resource models, validation errors, pagination, and compatibility as a backend API grows.